Chiltern Hundreds

[chil-tern] /ˈtʃɪl tərn/

plural noun, British.

1.

certain crown lands, the stewardship of which is nominally bestowed on a member of the House of Commons to provide an excuse to resign, as members are not allowed to hold titular office from the crown.

Idioms

2.

to apply for the Chiltern Hundreds, to resign or express a desire to resign from the House of Commons.